Iván Ríos (born José Juvenal Velandia; 19 December 1961 – 3 March 2008), also known as Manuel Jesús Muñoz Ortiz,[1][2][3] was head of the Central Bloc of the Revolutionary Armed Forces of Colombia (FARC-EP)[1] and the youngest member of this guerrilla's Central High Command.

Ríos was born in San Francisco, Putumayo, Colombia.

[1][3] Ríos was killed by his security chief, Pablo Montoya, on 3 March 2008 in a mountainous area of the western department of Caldas.

[4] Colombian military forces were involved in an operation to capture Ríos, when a FARC member calling himself "Rojas", on 6 March 2008, delivered a severed right hand, a laptop computer and an ID to the troops.

Pablo Montoya claimed to have killed Ríos three days earlier.